Loudness Sentence Examples

- Sounds differ from each other only in the three respects of loudness, pitch and quality.

When two notes are not quite in unison the resulting sound is found to alternate between a maximum and minimum of loudness recurring periodically.

- Various devices have been successfully employed for making sounds of determinate loudness in order to test the hearing of partially deaf people.

But the converse, the measurement of the loudness of a sound not produced at our will, is by no means so easy.

We certainly do not wish to measure its loudness, and even if we did it might be difficult to fix on any unit of noisiness.

Taking the squares of the amplitude to represent the intensity or loudness of the sound which would be heard by an ear at the point, this is 4a 2 cos t ir(ni - n2)t =2a 2 {1 -cos 27r(n l - n2)t}, a value which ranges between o and 4a 2 with frequency .n1 - n2.

In connexion with the present subject it is important to notice the three characteristics of a musical sound, namely, pitch, loudness and quality.

It consists at times of a low deep moaning, repeated five or six times, ending in faintly audible sighs; at other times he startles the forest with loud, deep-toned, solemn roars, repeated in quick succession, each increasing in loudness to the third or fourth, when his.

Her speech lacks variety and modulation; it runs in a sing-song when she is reading aloud; and when she speaks with fair degree of loudness, it hovers about two or three middle tones.

Then do= I do dx The Characteristics of Sound Waves Corresponding to Loudness, Pitch and Quality.

15 a Thus we learn that two musical notes, of the same pitch, conveyed to the ear through the air, will produce the effect of a single note of the same pitch, but of increased loudness, if they are in the same phase, but may affect the ear very slightly, if at all, when in opposite phases.

The loudness of the sound brought by a train of waves of given wave-length depends on the extent of the to and fro excursion of the air particles.

Now the amplitude evidently corresponds to the loudness, and the length of period corresponds to the pitch or frequency.

The pitch of a musical sound depends on the number of cycles passed through by the fluctuations of the pressure per unit of time; the loudness depends on the amount or the amplitude of the fluctuation in each cycle; the quality depends on the form or the nature of the fluctuation in each cycle.

If we are to assume that the tones received by the ear are pure and free from partials, the loudness of the beattones would appear to show that Helmholtz's theory is not a complete account.